While I didn't get a Guarder FTK, I essentially replaced everything in my M14 with Guarder components. The only things I have to complain about are the polycarbonate piston head and cylinder head.
I am running a Guarder SP110 (with a few coils cut off so it's shooting ~400 fps) and within two games, I cracked the piston head at the vent holes and the shards of plastic locked up my mechbox. This may be a problem with Guarder plastic piston heads in general as I cracked a couple more in the same spot with other guns shooting lower.
Next was the cylinder head, the rubber pad at the back of the cylinder head (the part that makes contact with the piston head) was not properly secured on mine and thus twisted slightly. Since the nozzle hole is offset and not in the middle (like with Ver 2/3 cylinder heads) the rubber pad blocked the hole which stopped my gun from firing.
To remedy this issues, I have since installed a Guarder aluminum piston head (the only other alternative I could get quickly) and gone back with the stock cylinder head. After doing replacing those two parts I have not had any problems with my M14 and it's been fielded about 6 times. The gun is firing nice and consistent now but those two parts are definitely things you should avoid.
|